Home / 19,556.90-29,349.93-7,870.22

Finding the Fourth Proportional to 19,556.90, 29,349.93 and 7,870.22

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Solution

The fourth proportional to 19,556.90, 29,349.93 and 7,870.22 is: 11,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,556.90 : 29,349.93 = 7,870.22 : x
  2. Step 2: Convert to fraction form
    19,556.90/29,349.93 = 7,870.22/x
  3. Step 3: Cross multiply
    19,556.90x = 29,349.93 × 7,870.22
  4. Step 4: Simplify right side
    19,556.90x = 230,990,406.08
  5. Step 5: Solve for x
    x = 230,990,406.08/19,556.90
  6. Step 6: Final answer
    x = 11,811.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.